Handling: hand and hoist-line implements – Grapple – Fixed and moveable jaw
Patent
1988-11-22
1990-03-27
Cherry, Johnny D.
Handling: hand and hoist-line implements
Grapple
Fixed and moveable jaw
294 61, 294 871, 294109, 414111, 414736, 414740, A01D 8712, B66C 304
Patent
active
049114913
ABSTRACT:
Bale handling apparatus comprises a main frame including transverse supports and devices mounted on the main frame for picking up bales. These bale pick-up devices comprise a plurality of substantially identical modules which are transversely adjustably mounted on the transverse supports of the main frame so that the number and position of the modules can be varied. The bale pick-up devices each have movable tines which, in an operative position, engage a bale and, in an inoperative position, are retracted clear of a bale, and actuators associated with each respective bale pick-up device operable to move the movable tines thereof to and from the operative position. The actuators of the respective bale pick-up devices are connectable in parallel to a common drive and releasable locking devices are associated with the movable tines of each bale pick-up device for locking the movable tines in the inoperative position. The movable tines which are unlocked against movement to the operative position and have not already achieved the latter position, will be moved to the operative position when the common drive is operated to energize the actuators in the sense for moving the movable tines to the operative position.
REFERENCES:
patent: 2734646 (1953-02-01), Stimpson
patent: 3112136 (1959-03-01), Hammond
patent: 3420564 (1966-08-01), Jensen et al.
patent: 4193728 (1980-03-01), Steketee
patent: 4548535 (1983-12-01), Van Die
patent: 4673645 (1987-01-01), Eriksson
Cherry Johnny D.
Ford New Holland Inc.
Marquette Darrell F.
Miller Larry W.
Seemar Frank A.
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